The automatic process to change your capacities.
Conflict With Moral Realism
Its not obvious why evolution would select faculties that lead to reliable moral belief. If moral beliefs are evolutionary shaped, they may not align with Objective Moral Facts. There does not seem to be an evolutionary advantage with truth
Parallels
Imagine all your beliefs and memories are implanted by an Descarte’s Evil Demon. Then you have no reason to believe that these memories/beliefs are true beliefs. You should then have skepticism about the source of these beliefs.